Refrigerator



Feb. 16, 1937. f c. sTl-:ENsTRUP 2,071,183

REFRIGERATOR Filed Jan. 26, 1935 3 Sheets-Sheet 1 His Atto'r'heg.

Feb. 16, 1937. c. s'rEENs'l-RUP 25071,-183

REFRIGERATOR l lFiled Jan. 26, 1935 3 Sheets-Sheet 2 Inventor:

4 9, 74 His Attornefg.

"l Christian Steenstvup,

Feb. 16, 1937. c. sTEENsTRUP REFRIGERATOR 1935 3 Sheets-Sheet 5 4r Invent-OP: Christian Steehst`l.lp

His Attorney.

`Patented Feb. 16, 1937 UNITED STATES PATENT OFFICE REFRIGERATOR Christian Steenstrup, Schenectady, N. Y., assigner to General Electric Company, a corporation of New York v Application January 26, 1935, serial No. '3,624

1s claims. V(c1. 62-116) My invention relates to refrigerators. partly in section, of a refrigerator embodying my Refrigerators usually include a refrigerating invention; Fig. 2 is a plan view of a separable machine associated with a heat insulated cabirefrigerating machine included in the refrigeranet. Such a machine may be a refrigerating mator shpwn in Fig. 1; Fig. 3 is a side elevation 5 chine of the compression type comprising a reof the refrigerating machine shown in Fig. 2, the 5 frigerant compressor driven by an electric momachine being arranged in a convenient position tor or the like, and a condenser in which the for shipment; Fig. 4 is a perspective view of the compressed refrigerant is liquefied. The liquecondenser included in the refrigerator shown in fled refrigerant is then supplied to an evapora- Fig. 1, the central portion of the condenser betor, in which it is vaporized by heat abstracted ing broken away; Fig. 5 is a detail sectional view 10 from a cooling compartment in which the evapof the purging valve provided on the condenser orator is located. When such refrigerators are shown in Fig. 4; and Fig.'6 is a perspective view designed for household use, they may utilize a of a modified form of condenser which may be cabinet having a machinery compartment in substituted for the condenser included in the l5 which the motor driven compressor unit is lorefrigerator shown in Fig. 1, the central portion 15 cated and a cooling compartment in which the of the condenser being broken away. evaporator is located. The condenser is prefer- Referring to the drawings, in Fig. l, I have ably cooled by air in order to simplify the appashown a refrigerator embodying my invention inratus, and hence should be located in a position cluding a cabinet and a refrigerating machine.

in which arelatively large supply of cooling air The cabinet includes a rectangular outer sheet 20 may readily pass thereover. The refrigerating l metal shell I0 havinga rectangular openinginthe machine for such a refrigerator includes all of top thereof and provided with an imperforate the moving parts therefor, and hence it is desirhorizontal sheet metal partition I I therein, which able that it be readily separable from the cabinet extends entirely across the interior of the lower in order to facilitate the assembly and repair portion of the cabinet. The front and rear edges 25 thereof. This separable refrigerating machine of the partition II are provided with downwardly should be arranged in such a manner that it may extending flanges I2 and I3, respectively, which be charged with refrigerant at the factory, and are welded, or otherwise secured, to the front 'the refrigerant connections between the various and-rear walls of the shell I0. The partition II 4elements made in a permanent form, which need divides -the space within the rectangular shell I0 30 not be alteredwhen the machine is mounted on .into an upper cooling compartment I4 and' a the cabinet or dismounted therefrom. lower machinery compartment I5, respectively.

" -It is an object of my invention tlo provide a The cooling or food storage compartment I4 is refrigerator of the type described, having an improvided with an open top inner liner I6, which proved arrangement of the elements of the recovers the bottom and side walls thereof, and is 35 ,frigerating machine therefor, in order to simplify provided with ansaperture I1 in the front Wall the assembly thereof and to increase the eiiithereof. The'v liner I6 is surrounded bya heat lnciency of operation thereof. sulation I8, and the aperture I1 in the front wall AIt is a further object of my invention to prothereof is closed by a heat insulated door I9. The

40 Vide 'an improved separable refrigerating maedge of the `heat insulation I8 surrounding the 40 chine for a refrigerator, of the type described, opening in the top of the liner.I6 is covered by a in Order that the machine may be Charged With cloth band IBal. The front and rear walls of the refrigerant and placed in the cabinet at the shell I0 extend downwardly only to the bottoms place of installation without the necessity of al` of the flanges I2y and I3, respectively,'of the horitering any of the refrigerant connections, or the zontal partition II. The lower edges 20 of the 45 like, thereof. sides of the shell I0 are folded back on themselves,

Further objects and advantages of my inventhus reinforcing the lower side walls of the shell tion will become apparent as the following de- I0. The lower edges of the shell I 0 are joined scription proceeds, and the features of novelty by horizontal angle irons 2| and 22. The ends of which characterize my invention will be pointed l the angle iron 2l are welded, or otherwise secured, 50

out with particularity in the claims annexed to to horizontal angle irons 24, on opposite sides of and forming a part of this specification. the cabinet, and the angle iron 22 .is bolted to A better understanding of y my invention vertical legs 25 by bolts 22a. The cabinet thus may be had by reference to the accompanyformed isA supported upon and reinforced by a ing drawings, in which, Fig. 1 is a side elevation, base 23. The base 23 is made of a rectangular. 55

supported on the legs 25,V the base 23 being surrounded on the front and sides by a metal mop board 26, the rear of the base 23 being open. The mop board 26 has an inset portion21 in the front thereof, which permits cooling air to enter the compartment I5 at 28. The front, rear, and bottom .of -the compartment I5 are thus open. The front wall of the compartment I5 is covered by a removable,'rectangular panel 29, which eX.- tends entirely across the same. When the door |9 and panel 29 are closed, the front of the cabinet thus presents a smooth surface, which may be easily cleaned.

The cabinet base construction, described above,

is not my invention, but is the invention of VRalph I E. King and is described and claimed in his apcompartment I4.

plication Serial No. 747,879, iiled October 11, 1934, and assigned to the-General Electric Company, the asignee of my present invention.

'I'he cabinet described above, is provided with a separable refrigerating machine, including as its principal elements a refrigerant circulatory unit, or compressor, a condenser, and a refrigerant expansion unit. In the present embodiment of my invention, the machine is of the compression type. This machine includes as an element, a refrigerant liquefaction apparatus comprising a compressor unit 30 having a motor driven compressor contained in a cylindrical hermetically sealed steel casing 3|, and also comprising an air cooled condenser 32 arranged at the back of the cabinet. The other principal element of the machine is an evaporator 33 within the cooling pressed by the compressor unit 30, liqueed in the condenser 32, and vaporized in the evaporator 33 by the absorption of heat from articles contained in the cooling compartment I4. The vaporized refrigerant is then returned to the compressor unit 30, and the cycle repeated. The operation of the apparatus is described more in detail below.

'I'he compressor casing 3| is surrounded by an annulus of U-shaped heat conducting fins 34, the base of .each of the U-shaped ins being welded, or otherwise secured, to the periphery of the casing 3| in good heat conducting contact therewith. The fins 34 are reinforced by a pair of upper and lower metallic rings 35 and 36. surrounding the ns which are welded, or otherwise rigidly secured, thereto, thus serving to strengthen the ns 34and providing surfaces to which supports may be conveniently attached;

"I'he `air cooled condenser 32 extends over a major portion of th exterior side of the rear wall of the cabinet.Y I prefer to locate the condenser 32 on the rear wall of the cabinet,1as it is usually out of sight there and at the same time receives an adequate supply of cooling air. 'I'he condenser 32 is made up of innenand outer portions or sheets of metal 31 and 38, which are providedr with a series of complementary vertical indentations thereinsuch as the indentations 39 and 40,

best shown i'n Fig. 4. These vertical indentations y form a series of vertical l'refrigerant circulatory passages, which are connected in parallel relationship at their upper and lower ends by manifolds 4|` and 42, respectively. The manifolds 4I and 42 are formed by complementary horizontal indentations in the inner and outer sheets 31- and 38, the sheets 31 and 38 being joined together in face engagement by line welding or by a series l' of closely spaced spot-welds extending about the` peripheral edges thereof and along the contacting portions thereof between the indentations 2,071,188 frame/formed by the horizontal angle irons 24` Gaseous refrigerant ,is com-l of upper and lowerstraps 41 and 48.

formed therein. These sheets 31 and 38 may be joined together by brazing or in some similar manner. The lower edge of the condenser l32 is bent inwardly, forming a horizontal lower strengthening ilange 43. The center of the condenser 32 is bowed outwardly, thus giving the cross section of the central portion thereof, an arcuateshape, as best shown in Fig. 2. 'I'he ends of the flange 43, such as the end 44, shown in Fig. 4, areJ bent upwardly against theadjacent portion of the condenser 32, and the vertical edges of the condenser are then bent outwardly, forming flanges 45 and 46, which constitute transversely extending reinforcing sections therein. The condenser 32 is thus formed of a channel-shaped cross section, the central portion thereof being slightly arcuate in shape. The reinforcing ilanges 43, 45, and 48, as well as-the arcuate central portion of the condenser 32, insure a strong rugged construction, which is particularly rigid with respect to lateral bending, even though the metal sheets 31 and 38 be made from A comparatively light sheet metal stock. Consequently, it is unnecessary to provide the conventional strengthening frame for the condenser 32, and a substantial saving in material is described and claimed in my divisional application Serial No. 41,929, filed September 24, 1935, and assigned to the General ElectricA Company, the assignee of my present invention.

The compressor unit 30 extends laterally from,

and is supported by the lower end of the condenser 32, and is rigidly secured thereto by a pair These straps 41 and 48 each have a central arcuate portion which conforms to, and is rigidly secured byl welding, or otherwise, vto the rings 35 and 36, respectively. 'I'he rearwardly extending feet of -the straps 41 and 48 are secured to a pairof` vertical channel irons 49 and 50, by bolts 5|, which pass through holes 52 formed near the upper and lower ends of the channel irons 49 and 50. The feet 53 .and 54 of thechannel irons 49 and 50, respectively, are welded, or otherwise secured, to the front face of the condenser 32.

The condenser 32 is supported on the exterior i side of the rear wall of the cabinet shell I0 in spaced relation thereto, by a series of supports which includes a pair of U-shaped brackets 55 and 56, located `adjacent the top of the condenser and Aon each side thereof. 'Ihe inner legs of the brackets 55 and 56 are welded, or otherwise secured, tothe adjacent portion of the condenser 32. These brackets are provided with rearwardly extending portions 51 and 58, respectively, which act as bumpers and aid the anges 45 and 46 in protecting the condenser 32 and spacing it from an adjacent wall. or the like. As shown in Fig. 4, the bracket 56 is provided with a relatively small hole 59 in the outer leg thereof, and a larger hole 60 in the inner leg thereof, the latter hole registering with a hole of the same size in the condenser 32. A machine screw 6|, shown in Fig. 1, having a head of a smaller diameter than the hole 60, but larger in diameter than the hole 59, is inserted through the hole 60 and engages the rear wall of the shell I0, thus holding the upper end of the condenser 32 rmly in position. A second pair of brackets 62 and 63 are welded, or

' otherwise secured, to the sides of the condenser 32 intermediate its ends. The bracket 63 is provided with holes 64 and 65, which are similar to the holes 59 and 60 provided in the bracket 56,

and a bolt 66 is inserted through the hole 65,

passes through the hole 64, and the head of the bolt engages the rear wall of the shell I0 and the rear ange I3 of the partition as shown in Fig. 1. The brackets and 62 are provided with holes and bolts or machine screws therefor, similar to the brackets 56 and 63. end of the condenser 32 is provided with a pair of brackets 61 and 68, having lower vertical offset portions 69 and 10, respectively. These offset portions 69 and 10 are provided with bolt holes 1| and 12, respectively. A bolt 13 passes through the condenser'32, a cylindrical spacer 14, the hole 12, and is secured to the angle iron 22. The condenser 82 is thus rmly secured to the'exterior side of the rear wall of the cabinet and assists in supporting the laterally extending compressor unit 30, within the machinery compartment I5. The front of the compressor unit 30 is supported by an L-shaped bracket 15, which is welded, or otherwise secured, to the rings 35 and 36, the lower end of the bracket 15 being secured to the angle iron 2|, by a bolt 16.

The refrigerant evaporator 33 is arranged in the cooling compartment I4, and Ain the illustrative form of my invention, the evaporator is of the iiooded type and is made of sheet metal. This evaporator includes complementary inner and outer sheet metal portions 11 and 18, respectively. A horizontal header 19, formed by indentations in the sheets 11 and 18, is formed near the top of one side wall of the evaporator 33,

and a series of refrigerant circulatory passages 60, communicating with the header 19, are formed by corrugations in the outer sheet 18 and the cooperating smooth inner sheet 11. The upper edges of theevaporator 33 are' provided with inturned anges 8|, which are secured by bolts 83 to a removable rectangular top liner 82, of the compartment I4. The removable top liner 82 is provided with an upturned peripheral flange 84 and extends entirely across' the open top of the linr I6. T'he liner I6 is provided with an inturned ange 85, adjacent the top thereof and extending about all four vertical vsides of the same, which forms a horizontal shoulder on which the top liner 82 is. supported. A layer or pad of loosely packed heat insulation 81 is placed above the top liner 82, and the rectangular opening in the top of the shell I0 surrounded by the flange |0a. is closed by a flat sheet metal cover 88, the sheet metal cover 88 is' providedwith a downwardly extending peripheral flange 89, having an inturned portion 89a along the' front edge thereof which is engaged by the spring clip 89h, the latter being screwed to the top of the shell I0. The rear edge of the cover^88 is held in place by a clip 88a which is secured to the ange 89 of the cover 88 and to the rear wall of the shell |0 by screws 88h. A rubber gasket 93 formed in the'bottom of the cylindrical de The lower pression 9| in the top liner 82. 'I'he oat valve lcasing 90 is supported by a. pair of straps 94 and 95 which are tightly clamped thereabout and held together by bolts 96 passing therethrough. The ends of a longer strap 95 are provided with extensions 91 and 98 which are secured to the top liner 82 by the bolts 83.

The refrigerant circuit of the refrigerating machine described, includes a conduit 99, which connects the discharge side of the compressor contained in the casing 3| with the inlet |00 of the condenser 32. of copper tubing, or the like, connects the outlet |02 of the condenser 32 with the iloat valve casing 90 for supplying liquid refrigerant thereto. A liquid line |03 connects the outlet 92 of the float valve casing 90 with the refrigerant circulatory passages of the evaporator 33. A ilexible exhaust conduit |04, made of copper tubing or the like, communicates with the header 19 of the evaporatorl 33 .at I04a. above the normal liquid level therein and with the inlet ofthe compressor contained in the casing 3|. It will be noted that the conduit |04 extends about the iloat valve casing in heat conducting relationship therewith. The conduits |0| and |04 thus provide a flexible connection between the evaporator 33 and the rigidly connected compres- `sor and condenser. A exible rubber sleeve |05 is arranged on the conduits |0| and |04, and extends from the upper portion of the condenser over the upper rear edge of the shell I0, in order to protect the conduits. A bracket |06, welded, or otherwise secured, to the upper edge of the condenser 32, serves to secure the sleeve` |05 and the upper portions of the conduits |0l and |04 in position with respect to the condenser.

It will be noted that the conduits 0| and |04 pass through a notch |01 formed in the flange 89 of the cover 88 and through a notch formed in the rea'r portion of the flange I0a on the shell I0. A rubber bushing |08 lis provided in the notch, in order to protect the conduits |0| and |04'from the sharp edges thereof. v

It is desirable to locate the inlet |00 of the condenser 32 in the lower portion thereof, as ilp lustrated, in order to minimize the length of the conduit 99, connecting the compressor in the casing 3| thereto. Since both the inlet |00 and the'outlet |02 of the condenser 32 are located near-the bottom thereof, and since the circulatory` passages communicating therewith are connected in parallel relationship, there is dangerthat air, or other gas which is non-condensable at the operating pressures and temperatures prevailing in the machine will be trapped in the condenser 32. A purging valve |09 is therefore v' connected to the upper manifold 4| of the condenser 32. The purging valve |09 is of conventional design and, as shown in Fig. 5, in-

A llexible conduit |0I, made cludes a hollow cylindrical body ||0, which is welded to the outer sheet 38 of the condenser 32. A tapered valve element ||I is threaded to the interior of the valve body I|0, and the tapered portion of the valve element |I| is seated firmly against the seat ||2 formed in the valve body ||0. When the valve element is unscrewed, gas may escape to the atmosphere past the valve seat ||2 and through a passage ||3 formed in the valve element The passages of the condenser 32 may thus be purged of air, or the like, by opening the valve |09.

In the operation of the refrigerating machine, described above, gaseousrefrigerant is compressed relation with respect to the rear wall of the cabinet, in order that cooling air may readily pass over both the inner and outer surfaces of the condenser. ooling air enters the machinery compartment I5, through the bottom thereof and the opening 28 formed in front of the inset portion 2'I of the mop board 20, and passes about the cooling ns 34 land periphery of the compressor casing 3|, absorbingv heat therefrom.-

The air leaving the machineryv compartment I then passes upwardly between the rear wall of the cabinet and the surface of the condenser 32 adjacent the rear wall of the cabinet. The rising warm air thus sets up a current of cooling air about the condenser 32, and the latter is sufciently cooled by natural draft, it being unnecessary, in the machine illustrated, to provide a fan, or other forced draft cooling apparatus. The circulation of cooling air, over the surfaces of the condenser- 32, is further facilitated in that the sides of the space between'the condenser and the reary wall of the cabinet are left open, so that the air may circulate in a lateral direction therethrough. The refrigerant in the condenser 32, which is thus liqueed lby the transfer of heat therefrom to the surrounding cooling air, drains lby gravityto the lower manifold 42. 'I'he liquid refrigerant thus accumulated in the lower manifold 42 is forced through the outlet |02 by the pressure of high pressure refrigerant vapor in the condenser above the level of liquid refrigerant therein, and through the conduit IOI to the iioat valve casing 90. The liquid refrigerant accumulated in the oat valve casing 90 is supplied to the evaporator 33 through the liquid line |03 in suiiicient quantity to maintain the header 'I9 about half full of liquid refrigerant. The refrigerant circulatory passages y80'are thus flooded with liquid refrigerant. The refrigerant, which is vaporized by the absorption of heat from the cooling compartment I4, is collected in the header 19, above vthe level of the liquid refrigerant contained therein, and is drawn oi to the compressor contained in the casing 3| throughnthe suction conduit |04, and the cycle is repeated continuously during operation ofthe machine.

The refrigerating machine described may be removed'from the cabinet or the like used therewith for purposes of shipment and is preferably' arranged for shipment with the 'evaporator 33 supported above the condenser 32 by brackets H4 and KI'I4a, in the position shown in Fig. 3. When removing this machine from the cabinet,

uthe' bolt 1641s removed from the bracket 15, thus yfreeing the front end of the compressor unit 3|. The bolts and machine screws 6|, 56, and 13,

which secure the condenser 32 in position on the rear of the cabinet, are removed. The cover 03 and insulating pad'tl'l are removed from the top of the cabinet. 'Ihe horizontal angle iron 22, which is normally secured to the base 23 by the bolts-1S, is also removed'. As the conduits I0| and |04 are iiexible,`it is then possible `to swing the condenser 32 and compressor unit 30, which are rigidly connected together, to the rear of lthe cabinet,so that the compressor unit 30 is .moved out -of the machinery compartment I5.l

'The top liner 82 and the evaporator and float valve structure, which is secured thereto, may then be moved vertically upward out of the cooling compartmentA I4. 'I'heentire rei'rigerating machine can be thus removed from the cabinet without the necessity of altering or breaking any of the refrigerant connections. The V- shaped brackets |I4 and II4a are used to support'the evaporator 33 on the upper end oi' the condenser for shipment. The lower end of the bracket ||4a is secured to the side flange 46 of `the condenser 32 by bolts II5 passing through the holes I|5a formed in the ange 40. As

shown in Fig. 2,\the opposite ends ofthe brackets |I4 and II4a are bent inwardly. It should be noted that in Fig. 2, the top liner 02 has been shown in a position at right angles with respect f to the condenser 32, in order that a better view of the parts of the apparatusC may be had. When in position for shipment, the top liner 02 is preferably arranged at an acute angle, with respect to the condenser 32, as illustrated in Fig..3 in order to reduce the height of the apparatus. It Will be understood that any desired angular relation may be used. I'he inturned upper ends of the brackets II4 and I|4a are pivotally secured by pins |I8 to U-shaped brackets II6 and II'I respectively, the U-shaped brackets being welded, or otherwise secured, at their bases to the upper side of the .top liner 32. It will be noted that the elbows of the brackets IM and ||4a project beyond the bend in the conduits |0| and |04 thus protecting them during shipment. The rearwardly extending portions 51 and 58 of the brackets 55, 5 6, and the corresponding portionsv of the brackets 62 and 63, serve as feet on which the apparatus maybe supported during shipment. It will be seen that the strong construction of the condenser 32, which I have provided, is also advantageous during shipment of the apparatus, since it is rigid enough to properly support the compressor unit 3l and the evaporator `3? thereon. The brackets ||4 and ||4a are preferably attached to the apparatus, as shown, bei'ore it is removed from the cabinet. Then the condenser 32 may be swung tothe rear, pivoting on the pins III and I |8,'. its weight being thus supported on the cabinet by the removable top liner 82 during the disassembly process.

In assembling the refrigerant liquefaction and expansion apparatus on the cabinet, the operations described are reversed; that is, the evaporator 33 is moved vertically downward into its proper position in the cooling compartment I4 with the top liner 82 horizontally in place, the

condenser 32 and compressor unit 3| are swung cooled condenser, II9, which may be substituted for the condenser 32 in the refrigerating machine, described above, the condenser |I9 being approximately of the same size as the condenser 32. 'I'he condenser |.I9 is described and claimed in my divisional application Serial No. 41,929, referred to above. 'I'he condenser ||9 is made up of inner and outer portions `or sheets of metal |20 and I2I, which are provided witha series of complementary vertical indentations therein, such as the indentations |22 and |23. 'I'hese vertical indentations forma series of vertical refrigerant circulatory passages, which are connected in parallel relationship at .their upper and lower ends by manifolds |24 and |25 respectively. The meniu means including a refrigerant evaporator for ala-'- folds '|2|| and |25 areformed by complementary horizontal indentations in the inner and outer sheets |20 and |2I. The sheets |20 and |2| are joined together in face engagement by line-welding or by a series of closely spaced spot-welds' extending about the peripheral edges thereof, and along the contactingA portions thereof between the indentations formed therein. The sheets |20 and |2| are then bent in a corrugated form, as shown in Fig. 6, both in order to strengthen the condenser structure thus formed, and in order to increase the surface area thereof without increasing its width. The corrugations formed in the condenser ||9 constitute transversely extending reinforcing sections therein. The vertical edges of the condenser ||9 are bent outwardly to form iianges |26 and |21,provided with holes |28 and N29 therein, respectively. Bolts, or other securing means, may be inserted through the holes |20 and |29 to mount the condenser ||9 on the exterior side of the rear wall of the cabinet. It will be noted, that the sides |30 and |3| of the condenser ||9 are somewhat longer than the depth of Athe corrugations formed` therein and in this way space is provided for the circulation of cooling air between the rear wall of the cabinet and the adjacent surface of the condenser, as described above in connection with the construction shown in Figs. 1 to 5 inclusive. A pair of horizontal straps |32 and |33'are Welded, or otherwise secured, to the top of the corrugations on the front of the corrugated condenser H9, these straps being provided with holes |34 and |35 respectively, registering with similar holes extending through the condenser ||9,through which bolts are inserted for rigidly supporting a compressor unit, or the like, thereon. The straps |32 and |33 also serve to strengthen the corrugated sheet metal structure. Other horizontal straps such as the strap |36 may be welded, or otherwise secured, to the rear side of the condenser H9, in order to further strengthen the same, as well as to protect thev rear of the condenser from damage. Compressed gaseous refrigerant enters'the condenser H9, through an inlet |31, which communicates .with one of the vertical circulatory passages formed therein and condensed liquid refrigerant leaves the condenser ||9 through an outlet |38, which communicates with the lower manifold |25.

While I have shown a particular embodiment ofmy invention in connection with Fa. compression type refrigerating machine, I do not desire my invention to be limited to the particular construction shown and described, and I intend, in the appended claims, to cover all modifications within the spirit and scope of my invention.

What I claim as new and desire to secure by Letters Patent in the United States is:

1. A refrigerator comprising a cabinet provided with a machinery compartment and a cooling compartment, means including a refrigerant evaporator for abstracting heat from said cooling compartment, a rigid vertical condenser extending over a major portion of an exterior vertical side wall of said cabinet, a refrigerant circulatory unit extending laterally from said condenser and rigidly secured thereto, means including said concompartment, means including a refrigerant evaporator for abstracting heat from said cooling compartment, a rigid vertical condenser including complementary portions of sheet metal dening a refrigerant passage therebetween, said condenser extending over the major portion of a vertical wall of said cabinet, a refrigerant circulatory unit extending laterally from said condenser and rigidly secured thereto, means including said condenser for supporting said refrigerant circulatory unit in said machinery compartment, and means including said refrigerant circulatory unit and said condenser for supplying refrigerant to said evaporator.

4. A refrigerator comprising a cabinet provided with a machinery compartment and a cooling compfartment above said machinery compartment, means including a refrigerant evaporator for abstracting heat from said cooling compartment, a rigid vertical condenser including complementary portions of sheet metal defining a refrigerant passage therebetween, said condenser extending over the major portion of the rear wall of said cabinet, a refrigerant circulatory unit extending laterally from said condenser and rigidly secured thereto, means including said condenser for supporting said refrigerant circulatory unit in said machinery compartment, and means including said refrigerant circulatory unit and said condenser for supplying refrigerant to said evaporator.

5. A refrigerator comprising a cabinet provided with a machinery compartment and a cooling compartment, means including a refrigerant evaporator for abstracting heat from said cooling compartment, a rigid vertical condenser extending over the major portion of a vertical Wall of said cabinet, said condenser including a pair of complementary sheet metal portions having an extended refrigerant passage therebetween, said sheet metal portions being provided with transversely extending reenforcing sections therein, a

cured thereto, means including said sheet metal portions for supporting said refrigerant circulatory unit in said machinery compartment, and means' including said refrigerant circulatory unit and said condenser for supplying refrigerant to said evaporator.

6. A refrigerator comprising a cabinet provided with a machinery compartment and a cooling compartment, means including a refrigerant evaporator for abstracting heat from said cooling compartment, a rigid vertical condenser extending over the maior portion of the rear wall of said cabinet, said condenser including a pair fof complementary sheet metal portions having an extended refrigerant passage' therebetween, said sheet metal portions beingV forned of a channel-shaped cross section, portions of said condenser extending rearwardly thereof for protecting said condenser, 'refrigerant circulatory unitextending laterally from said sheet metal portions and rigidly secured thereto, means including said sheet metal portions for supporting said refrigerantfcirculatory unit in said machinery compartment, and means including said refrigerant circulatory unit and said condenser for supplying refrigerant to said evaporator.

'7. A refrigerator comprising a cabinet provided with 'a machinery compartment and a cooling compartment, means including a refrigerant evaporator for abstracting heat from said cooling compartment, a rigid vertical condenser extending over the major portion of a vertical Wall of said cabinet, said condenser including a pair of complementary sheet metal portions having an extended refrigerant passage therebetween, means supporting said condenser in spaced relation to said wall of said cabinet for facilitating the circulation of cooling air over said condenser, refrigerant circulatory unit extending laterally from said sheet metal portions and rigidly secured thereto, means including said sheet metal portions for supporting said refrigerant circulatory unit in said machinery compartment, and means including said refrigerant circulatory unit and said condenser for said evaporator.

8. A refrigerator comprising a cabinet provided with a machinery compartment and a cooling compartment above said machinery compartment, means includinga refrigerant evaporator for abstracting heat from said cooling compartment, a rigid vertical condenser extending over the major portion of th rear wall of said cabinet, said condenser including a pair of complementary sheet metal portions having an extended refrigerant passage therebetween, means supporting said condenser in spaced relation to said cabinet for facilitating the circulation of cooling air over said condenser, a refrigerant circulatory unit extending laterally from said sheet metal portions and rigidly secured thereto, ymeans including said sheet metal portions for supporting said refrigerant circulatory unit in said machin- I ery compartment, and means includingc said refrigerant circulatory unit and said Icondenser for supplying refrigerant to said evaporator.

9. A refrigerating machine separable from a cabinet or the like used therewith and comprising an air cooled condenser including a plurality of complementary sheet'metal portions, means for securing said sheet metal portions together, at least one of said sheet metal portions having an indentation therein cooperating with the other of said sheet metal portions to form an extended refrigerant passage therebetween, avrefrigerant circulatory unit extending laterally from said' sheet metal portions and supported thereby, an evaporator, means for flexibly connecting said evaporator to said condenser, and means including said refrigerant circulatory unit and said condenser for supplying refrigerant-to said evaporator. v

10. A refrigerating machine separable from a cabinet or the like used therewith comprising an air cooled condenser including a plurality oi" complementarylsheet metal portions, means for securing said sheet metal portions together, at least one of said sheet metal portions having an indentation therein cooperating with the other of said sheet metal portions to form an extended refrigerant passage therebetween, a refrigerant circulatory unit ,extending laterally froml said dieet metal portions and supported thereby adda:

supplying refrigerant to,v

cent one end thereof, an evaporator, means for flexibly connecting said evaporator to said condenser adiacent'the opposite end thereof, and means including said refrigerant circulatory unit and said condenser for supplying refrigerant to least `one of said sheet metal portions .having an indentation therein cooperating with the other of said sheet metal portions to form an extended refrigerant passage therebetween, said sheet metal portions being provided with transversely extending reenforcing sections therein, a refrigerant circulatory unit extending laterally from said sheet metal portions and supported thereby, an evaporator, means for flexibly connecting said evaporator to said condenser, and means including said refrigerant circulatory unit and said condenser for supplying refrigerant to said evaporator.

12. A refrigerating machine separable from a ycabinet or the like used therewith comprising an air cooled condenser including a plurality of complementary sheet metal portions, means for securing said sheet metal portions together, at

least one of said sheet metal portions having an indentation therein cooperating with the other of said sheet metal portions to form an extended refrigerant passage therebetween, at least one of said sheet metal portions being' of a channelshaped cross section, a refrigerant circulatory unit extending laterally from said sheet metal portions and supported thereby, an evaporator, means for exibly connecting said evaporator to said condenser, and means including said refrigerant circulatory unit and said condenser for supplying refrigerant to said evaporator.

' 13. A refrigerating machine separable from a cabinet or the like used therewith comprising an air cooled condenser including a plurality of complementary sheet metal portions, means for securing said sheet metal portions together, at

least one of said sheet metal portions having an and said condenser for supplying refrigerant to said evaporator.

14. A refrigerating machine separable from a cabinet or the like used therewith comprising an' air. cooled condenser including a plurality of complementary corrugated sheet metal portions,

vmeans for securing said sheet metal portions together, at least one of said sheetdmetal portions having anl indentation therein .cooperating with the other-of said sheet metal portions to form an extended refrigerant passage therebetween, a refrigerant circulatory unit extending 4laterally from said sheet metal portions and lsupported thereby, an evaporator,means for flexiblyconnecting said evaporator to said condenser, and

means including said refrigerant circulatory unit 15. A refrigerating machine separable from a cabinet, or the like, used therewith comprising an air cooled condenser including a plurality of complementary sheet metal portions, means for securing said sheet metal portions together, at least one of said sheet metal portions having an indentation therein cooperating with the other of said sheet metal portions to form-an extended refrigerating passage therebetween, said sheet metal portions being of channelshaped cross sections and bowed outwardly in the center thereoi` in the directionof the legs of said channel, a refrigerant circulatory unit extending laterally from said sheet metal portions adjacent one end thereof and supported thereby, an evaporator, a flexible conduit communicating with said passage and with said evaporator, a second ilexible conduit communicating with said evaporator and with said refrigerant circulatory unit, and means including said conduits for flexibly connecting said evaporator to the end of said condenser opposite said refrigerant circulatory unit.

16. A refrigerating machine separable' from a cabinet, or the like, use'd therewith/comprising a rectangular relatively thin condenser, a refrigerant icirculatory unit extending laterally from said condenser and rigidly supported there-V by, a` refrigerant evaporator, and means including a removable bracket for pivotally connecting said evaporator and said condenser.

17. A refrigerating machine separable from a cabinet or the like used therewith comprising a rectangular relatively thin condenser, a refrigerant circulatoryunit extending laterally from said condenser adjacent one end thereof, a refrigerant evaporator, and means including a removable angular bracket for supporting said evaporator laterally with respect to the opposite end of said condenser.

18. A refrigerating machine separable from a cabinet or the like used therewith comprising an air cooled condenser including a .plurality of sheet metal portions, means for securing said sheet metal portions together, at least one of said sheet metal portions having an indentation therein cooperating with the other of said sheet metal portions to form an extended refrigerant passage therebetween, said condenser being provided with outwardly extending side anges, a refrigerant circulatory unit extending laterally from said condenser adjacent one end thereof said condenser, each of said brackets having a leg secured to an adjacent side flange of said condenser.

CHBIS'I'IAN STEENSTRUP.

A D I SOI-AI M E R 2,071,183.-Ohristz`an Steenstru ,.Schenectady, N. Y. REF

RIGERATOR. Patent dated ebruary 16, 1937. Dlsclaimer filed Feb ruary 18, 1939, by the assignee, General Electric Company. Herby enters this disclaimer to claims 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, and 14 of said Letters Patent.

[Oficial Gazette March 21, 1939.] 

